Examples with ObjAttribute org.apache.cayenne.map.ObjAttribute used on opensource projects

Example 26 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class ObjRelationshipInfo method initMapKeys.

private void initMapKeys() {
    this.mapKeys.clear();
    mapKeys.add(DEFAULT_MAP_KEY);
    /**
     * Object target can be null when selected target DbEntity has no
     * ObjEntities
     */
    if (objectTarget == null) {
        return;
    }
    for (ObjAttribute attribute : this.objectTarget.getAttributes()) {
        mapKeys.add(attribute.getName());
    }
    view.mapKeysCombo.removeAllItems();
    for (String s : mapKeys) view.mapKeysCombo.addItem(s);
    if (mapKey != null && !mapKeys.contains(mapKey)) {
        mapKey = DEFAULT_MAP_KEY;
        view.mapKeysCombo.setSelectedItem(mapKey);
    }
}

Example 27 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class ObjEntityHandlerTest method testLoad.

@Test
public void testLoad() throws Exception {
    final DataMap map = new DataMap();
    assertEquals(0, map.getObjEntities().size());
    parse("obj-entity", new HandlerFactory() {

        @Override
        public NamespaceAwareNestedTagHandler createHandler(NamespaceAwareNestedTagHandler parent) {
            return new ObjEntityHandler(parent, map);
        }
    });
    assertEquals(1, map.getObjEntities().size());
    ObjEntity entity = map.getObjEntity("ArtistCallback");
    assertNotNull(entity);
    assertTrue(entity.isAbstract());
    assertTrue(entity.isReadOnly());
    assertTrue(entity.isServerOnly());
    assertFalse(entity.isClientAllowed());
    assertEquals(3, entity.getAttributes().size());
    assertEquals(8, entity.getCallbackMethods().size());
    assertEquals(ObjEntity.LOCK_TYPE_OPTIMISTIC, entity.getDeclaredLockType());
    assertEquals("org.apache.cayenne.testdo.testmap.ArtistCallback", entity.getClassName());
    assertNull("super.class should be suppressed by super entity", entity.getSuperClassName());
    assertEquals("Artist", entity.getSuperEntityName());
    assertEquals("client.class", entity.getClientClassName());
    assertNull("client.super.class should be suppressed by super entity", entity.getClientSuperClassName());
    assertEquals("ARTIST_CT", entity.getDbEntityName());
    ObjAttribute attribute = entity.getAttribute("artistName");
    assertNotNull(attribute);
    assertEquals("NAME", attribute.getDbAttributeName());
    assertEquals("java.lang.String", attribute.getType());
    assertTrue(attribute.isUsedForLocking());
    attribute = entity.getAttribute("dateOfBirth");
    assertNotNull(attribute);
    assertNull(attribute.getDbAttributeName());
    assertEquals("java.util.Date", attribute.getType());
    assertFalse(attribute.isUsedForLocking());
    attribute = entity.getAttribute("embeddable1");
    assertNotNull(attribute);
    assertNull(attribute.getDbAttributeName());
    assertEquals("org.apache.cayenne.testdo.embeddable.Embeddable1", attribute.getType());
    assertFalse(attribute.isUsedForLocking());
    String override = entity.getDeclaredAttributeOverrides().get("name");
    assertEquals("parent.child.name", override);
}

Example 28 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class ASTObjPathIT method testEvaluate_ObjEntity.

@Test
public void testEvaluate_ObjEntity() {
    ASTObjPath node = new ASTObjPath("paintingArray.paintingTitle");
    ObjEntity ae = context.getEntityResolver().getObjEntity(Artist.class);
    Object target = node.evaluate(ae);
    assertTrue(target instanceof ObjAttribute);
}

Example 29 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class DefaultSelectTranslator method appendQueryColumns.

/**
 * Appends columns needed for object SelectQuery to the provided columns
 * list.
 */
<T> List<ColumnDescriptor> appendQueryColumns(final List<ColumnDescriptor> columns, SelectQuery<T> query, ClassDescriptor descriptor, final String tableAlias) {
    final Set<ColumnTracker> attributes = new HashSet<>();
    // fetched attributes include attributes that are either:
    // 
    // * class properties
    // * PK
    // * FK used in relationship
    // * joined prefetch PK
    ObjEntity oe = descriptor.getEntity();
    PropertyVisitor visitor = new PropertyVisitor() {

        public boolean visitAttribute(AttributeProperty property) {
            ObjAttribute oa = property.getAttribute();
            resetJoinStack();
            Iterator<CayenneMapEntry> dbPathIterator = oa.getDbPathIterator();
            while (dbPathIterator.hasNext()) {
                Object pathPart = dbPathIterator.next();
                if (pathPart == null) {
                    throw new CayenneRuntimeException("ObjAttribute has no component: %s", oa.getName());
                } else if (pathPart instanceof DbRelationship) {
                    DbRelationship rel = (DbRelationship) pathPart;
                    dbRelationshipAdded(rel, JoinType.LEFT_OUTER, null);
                } else if (pathPart instanceof DbAttribute) {
                    DbAttribute dbAttr = (DbAttribute) pathPart;
                    appendColumn(columns, oa, dbAttr, attributes, null, tableAlias);
                }
            }
            return true;
        }

        public boolean visitToMany(ToManyProperty property) {
            visitRelationship(property);
            return true;
        }

        public boolean visitToOne(ToOneProperty property) {
            visitRelationship(property);
            return true;
        }

        private void visitRelationship(ArcProperty property) {
            resetJoinStack();
            ObjRelationship rel = property.getRelationship();
            DbRelationship dbRel = rel.getDbRelationships().get(0);
            List<DbJoin> joins = dbRel.getJoins();
            for (DbJoin join : joins) {
                DbAttribute src = join.getSource();
                appendColumn(columns, null, src, attributes, null, tableAlias);
            }
        }
    };
    descriptor.visitAllProperties(visitor);
    // stack should be reset, because all root table attributes go with "t0"
    // table alias
    resetJoinStack();
    // add remaining needed attrs from DbEntity
    DbEntity table = oe.getDbEntity();
    for (DbAttribute dba : table.getPrimaryKeys()) {
        appendColumn(columns, null, dba, attributes, null, tableAlias);
    }
    if (query instanceof PrefetchSelectQuery) {
        // for each relationship path add PK of the target entity...
        for (String path : ((PrefetchSelectQuery) query).getResultPaths()) {
            ASTDbPath pathExp = (ASTDbPath) oe.translateToDbPath(ExpressionFactory.exp(path));
            // add joins and find terminating element
            resetJoinStack();
            PathComponent<DbAttribute, DbRelationship> lastComponent = null;
            for (PathComponent<DbAttribute, DbRelationship> component : table.resolvePath(pathExp, getPathAliases())) {
                if (component.getRelationship() != null) {
                    // do not invoke dbRelationshipAdded(), invoke
                    // pushJoin() instead. This is to prevent
                    // 'forcingDistinct' flipping to true, that will result
                    // in unneeded extra processing and sometimes in invalid
                    // results (see CAY-1979). Distinctness of each row is
                    // guaranteed by the prefetch query semantics - we
                    // include target ID in the result columns
                    getJoinStack().pushJoin(component.getRelationship(), component.getJoinType(), null);
                }
                lastComponent = component;
            }
            // process terminating element
            if (lastComponent != null) {
                DbRelationship relationship = lastComponent.getRelationship();
                if (relationship != null) {
                    String labelPrefix = pathExp.getPath();
                    DbEntity targetEntity = relationship.getTargetEntity();
                    for (DbAttribute pk : targetEntity.getPrimaryKeys()) {
                        // note that we my select a source attribute, but
                        // label it as
                        // target for simplified snapshot processing
                        appendColumn(columns, null, pk, attributes, labelPrefix + '.' + pk.getName());
                    }
                }
            }
        }
    }
    // handle joint prefetches directly attached to this query...
    if (query.getPrefetchTree() != null) {
        // perform some sort of union or sub-queries.
        for (PrefetchTreeNode prefetch : query.getPrefetchTree().getChildren()) {
            prefetch.setEntityName(oe.getName());
        }
        for (PrefetchTreeNode prefetch : query.getPrefetchTree().adjacentJointNodes()) {
            // for each prefetch add all joins plus columns from the target
            // entity
            Expression prefetchExp = ExpressionFactory.exp(prefetch.getPath());
            ASTDbPath dbPrefetch = (ASTDbPath) oe.translateToDbPath(prefetchExp);
            resetJoinStack();
            DbRelationship r = null;
            for (PathComponent<DbAttribute, DbRelationship> component : table.resolvePath(dbPrefetch, getPathAliases())) {
                r = component.getRelationship();
                dbRelationshipAdded(r, JoinType.LEFT_OUTER, null);
            }
            if (r == null) {
                throw new CayenneRuntimeException("Invalid joint prefetch '%s' for entity: %s", prefetch, oe.getName());
            }
            // add columns from the target entity, including those that are matched
            // against the FK of the source entity.
            // This is needed to determine whether optional relationships are null
            // go via target OE to make sure that Java types are mapped correctly...
            ObjRelationship targetRel = (ObjRelationship) prefetchExp.evaluate(oe);
            ObjEntity targetEntity = targetRel.getTargetEntity();
            String labelPrefix = dbPrefetch.getPath();
            PropertyVisitor prefetchVisitor = new PropertyVisitor() {

                public boolean visitAttribute(AttributeProperty property) {
                    ObjAttribute oa = property.getAttribute();
                    Iterator<CayenneMapEntry> dbPathIterator = oa.getDbPathIterator();
                    while (dbPathIterator.hasNext()) {
                        Object pathPart = dbPathIterator.next();
                        if (pathPart == null) {
                            throw new CayenneRuntimeException("ObjAttribute has no component: %s", oa.getName());
                        } else if (pathPart instanceof DbRelationship) {
                            DbRelationship rel = (DbRelationship) pathPart;
                            dbRelationshipAdded(rel, JoinType.INNER, null);
                        } else if (pathPart instanceof DbAttribute) {
                            DbAttribute dbAttr = (DbAttribute) pathPart;
                            appendColumn(columns, oa, dbAttr, attributes, labelPrefix + '.' + dbAttr.getName());
                        }
                    }
                    return true;
                }

                public boolean visitToMany(ToManyProperty property) {
                    return true;
                }

                public boolean visitToOne(ToOneProperty property) {
                    return true;
                }
            };
            ClassDescriptor prefetchClassDescriptor = entityResolver.getClassDescriptor(targetEntity.getName());
            prefetchClassDescriptor.visitAllProperties(prefetchVisitor);
            // append remaining target attributes such as keys
            DbEntity targetDbEntity = r.getTargetEntity();
            for (DbAttribute attribute : targetDbEntity.getAttributes()) {
                appendColumn(columns, null, attribute, attributes, labelPrefix + '.' + attribute.getName());
            }
        }
    }
    return columns;
}

Example 30 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class HybridDataObjectIT method addRuntimeAttribute.

private void addRuntimeAttribute(Class<?> entityClass, String attributeName, String attributeType) {
    ObjEntity entity = runtime.getDataDomain().getEntityResolver().getObjEntity(entityClass);
    ObjAttribute attribute = new ObjAttribute();
    attribute.setName(attributeName);
    attribute.setDbAttributePath(attributeName);
    attribute.setType(attributeType);
    entity.addAttribute(attribute);
}